Security Knowledge [Nov, 14, 2002]

How can I close a port?

Important: An open port is not necessarily dangerous! You are only at risk if the program using the port contains harmful code. So there is no reason to close all ports in your system. In fact without your ports being open, the internet simply wouldn’t work! An open port is not an autonomous object, and […]

Security Knowledge [Nov, 10, 2002]

What is a port?

Short answer: A communication channel for computers in networks. A little more detail: In order for computers connected to the internet to be able to communicate with each other, the transmission standard “TCP/IP “was designed. TCP/IP is a software protocol for formatting and transferring data within a network – such as the internet. One of […]